Hi all, Does someone tried the new octo-coundcard with 6 inputs for the Raspi? There is a forum link: http://www.flatmax.org/phpbb/viewforum.php?f=9&sid=38d2f3c26e926886b446abdadb011928 It looks like
Hi all, Oh, now it is available at amazon UK: https://www.amazon.co.uk/Octo-channel-sound-card-Raspberry/dp/B06Y3PZ6MF But not in DL... 73, Stefan Am 31.05.2017 15:05, schrieb DK7FC: Hi all, Does som
When Stefan posted the Amazon UK link on 5th June, there were 5 available in the UK. Stefan, Paul and I bought one each - not sure where the others went! Have you been following Paul's tests with his
Hi all, Since a few minutes, the octo soundcard became part of my portable VLF/ULF recorder based on the Raspi. I did not follow the dicsuccions on the yahoo groups. For now i can tell that the sound
Hi Terry, Stefan, yes, seeing Paul's encouraging results on the VLF_Group thread (https://groups.yahoo.com/neo/groups/VLF_Group/conversations/messages/25666 and earlier posts) made me want to try it
Markus Sorry you missed the Octo, I'm sure another batch will be released soon. The designers, Flatmax, offer a discussion forum at: http://www.flatmax.org/phpbb/viewforum.php?f=9 The most recent po
The Octo is working quite nicely with vlfrx-tools. Getting less than a uS timing jitter on a good clean PPS. The card actually delivers 8 input channels but chans 7 and 8 are silent. To get the thing
Hi Paul, I took a brand new SD card for the Raspi, installed the latest Raspbian version. Also installed the soundcard and vlfrx tools. It works! ...mounted a USB stick, enabled ssh access, installed
The only thing I have to sort out now is the timing pulse. it looks horrible on vtscope, a sort of double humped thing and the timing doesn't have anything like the values shown on your vtscope scree
I'd guess you have some high pass applied to the shaped PPS, perhaps the input stage of the Octo? Does it look anything like http://abelian.org/vlf/tmp/170617a.gif Is it possible to reduce the PPS pu
Yes that's it! I have a 100k from the +5 PPS output in series with a 2.2 uF to ground. The PPS output to the Octo is taken from the RC junction. The Garmin can be programmed for pulse length but als
Then there's a high pass getting in the way, must be the input circuit of the Octo. You'll have to use a shorter PPS. 2mS to 5mS ought to do it. Yes, Linux can use any GPS for timing, the daemon gps
Thanks Paul I'll follow this up when I get back. QRT for a few days - our 40th wedding anniversary! Terry Then there's a high pass getting in the way, must be the input circuit of the Octo. You'll ha
Hi Terry, When you managed to build up your system, what do you intend to do with it then? Natural radio or even radio amateur detections? 73, Stefan Am 17.06.2017 09:00, schrieb Terry G0EZY: The onl
Hi Stefan My plan is to build some "proper" crossed loops for VLF. At the moment, I am using the Wellbrook LF version (down to 10 kHz). As the Octo has a 96 kHz sample rate, I would like broad-band l
Hi Markus Try eBay again. Electroacoustics are advertising for 75 AU$ + $15 for world wide shipping from China/Hong Kong. Showing more than 10 available. A search for "Audio Injector Octo Sound Card
Hi Terry, thanks to kind help by one American LF group member, I hope to receive one unit from the US a few days from now. But it's anyway good to see that more are becoming available now. Best 73, M
Hi all, I gave them some feedback that there is more interest from radio amateurs. Maybe they didn't know at all that there are some who are interested in the INputs :-) http://www.flatmax.org/phpbb/
